Microwaves & RF - Masters of High-Frequency Design

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05/25/2017 09:45 AM
goTenna Sets Sights on Off-Grid Tactical Communications
With its focus on enabling off-grid communications, this company’s latest product turns a smartphone into a mission-critical communications tool—without needing any centralized infrastructure.

05/24/2017 12:05 PM
For Prototyping, New Software-Defined Radio for Millimeter Waves
National Instruments released new radio heads that can be swapped into its millimeter wave transceiver system to measure how these high frequencies are affected by trees, buildings, cars, and people. National Instruments’ radio heads operate over the

05/24/2017 06:24 AM
Measurements Help Minimize EMI and RFI
Electronic energy is widespread in most operating environments, and circuits must be designed so that they don’t add to the totals—or succumb to the interference.

05/23/2017 01:28 PM
Micromachining Forms 1.9-THz Silicon Antenna
Micromachining techniques were used to fabricate two 1.9-THz antennas on silicon wafers.

05/23/2017 08:54 AM
AWGs Generate Multiple Complex Signals to 4 GHz
These AWGs pack enough digital processing power to generate as many as eight independent RF/microwave signal channels per instrument for emulating complex signal environments.

05/22/2017 11:06 AM
Measure Test Highlights While Riding Honolulu’s Wave
Hawaii will be playing host to the 2017 edition of the RF/microwave industry's premiere event, the IEEE International Microwave Symposium (IMS).

05/22/2017 10:38 AM
DARPA Attempts to Improve System Computer Models
The DARPA EQUIPS program, which began in 2015, is advancing the field of uncertainty quantification (UQ).

05/22/2017 09:30 AM
Sunlight Powers NRL’s Autonomous UAVs
Research at NRL seeks to extend the flight time of an electric-powered UAV through a combination of on-board photovoltaic cells and flight management software.

05/22/2017 08:12 AM
Israeli Navy Adds ALPHA Surveillance Radar
An AESA surveillance radar now guides each Saar 4.5 missile ship in the Israeli Navy.

05/22/2017 06:59 AM
Low-Power OCXOs Take Flight in LEOS Systems
These oven-controlled crystal oscillators provide stable output signals with low phase noise and power consumption and high radiation tolerance for satellite applications.

05/22/2017 06:35 AM
Elbit Targets Tactical Mobility with Satellite-on-the-Move Systems
Elbit Systems has received a contract from the Israeli Ministry of Defense (IMOD) for satellite-on-the-move (SOTM) systems.

05/19/2017 06:38 AM
Trump and H-1B Visas: What’s to Come?
The visa program again comes under scrutiny, but it’s not clear whether the recent executive order will have any impact in the foreseeable future.

05/18/2017 01:14 PM
Producing Efficient Power for 5G
Supply modulation techniques such as envelope tracking provide ways to increase the efficiency of power amplifiers such as those used in 5G wireless networks.

05/18/2017 08:56 AM
Frequency Stability, Here We Come!
For applications requiring even higher levels of temperature stability than what crystal oscillators can provide, OCXOs may be the solution.

05/18/2017 07:50 AM
Does the RF/Microwave Industry Need an Influx of Youth?
Companies should take steps to ensure that this industry becomes attractive to prospective young individuals.

05/17/2017 10:50 AM
IMS 2017 Hits Honolulu
This year, the RF/microwave industry’s flagship event comes to Honolulu with some new tricks up its sleeves.

05/17/2017 10:49 AM
2017 IEEE IMS Exhibitors Prepare for “The Wave”
Visitors to the RF/microwave industry’s largest conference and exhibition can sample some of the hardware, software, and test-equipment products that are turning 5G and IoT into reality.

05/17/2017 08:09 AM
Holograms Stand Out In Sea of Wireless Signals
An experimental system can take ghostly snapshots by measuring the reflections of the same Wi-Fi signals used for connecting to the internet. It has been suggested as a way of tracking packages in warehouses or mapping collapsed buildings to safely a

05/16/2017 11:51 AM
Raytheon Contracted for Long-Range 3D Radar System
A U.S. Air Force contract worth more than $52 million was awarded to Raytheon Co. for the development of a long-range 3D radar system.

05/16/2017 11:51 AM
SwRI Coordinates Unmanned Air and Ground Vehicles
A patent has been awarded to SwRI for a method of linking UAVs with UGVs to take advantage of the enhanced terrain data.

05/16/2017 11:51 AM
DARPA’s Colosseum Emulates EM Environments
The Colosseum built by DARPA at APL can simulate extremely complex EM environments.

05/16/2017 07:38 AM
AWG vs. DDS: Sources of Contention
These two types of signal sources both rely on digital architectures to generate pulsed output signals and analog sinewaves, often including complex modulation.

05/16/2017 06:50 AM
SCALABLE Aids Navy with Undersea Coms Simulations
A U.S. Navy contract has been awarded to SCALABLE Network Technologies for the development of underwater communications technologies.

05/15/2017 08:03 AM
Cable Assemblies Pass Demanding Flight Requirements
RF/microwave cable assemblies recently passed demanding U.S. Army flight qualification testing to ensure reliability under harsh conditions.

05/15/2017 07:47 AM
DARPA Seeks Protection from Cyber Attacks
Rockwell Collins has been awarded a DARPA contract to develop software protection against cyber attacks.

05/15/2017 07:27 AM
Startup Recruits AI for Battlefield Protection
A startup company is developing a battlefield drone equipped with artificial intelligence (AI) to make critical tactical decisions.

05/15/2017 07:08 AM
Mercury Acquires Delta Microwave
Mercury Systems has acquired Delta Microwave, a supplier of RF/microwave components and subsystems.

05/15/2017 06:40 AM
Mercury Systems Supplies Jammer DRFMs to Navy
Mercury Defense Systems has been awarded a five-year BOA by the U.S. Navy for DRFM subsystems.

05/15/2017 06:14 AM
The Battle Over V2V Wireless Technologies
The DSRC standard was expected to have been named the official wireless technology for V2V communications, but now that decision's up in the air.

05/15/2017 06:01 AM
In Buying Straight Path, Verizon Moves Needle Toward Millimeter Waves
The wrestling matches over millimeter wave spectrum are intensifying. Major wireless carriers have acknowledged that the high frequency bands are vital for 5G communications. That became clearer on Thursday when Verizon announced a $3.1 billion deal

05/12/2017 01:40 PM
What You Need to Become a Multi-Functional Engineer
A software platform with multi-domain capabilities can be highly beneficial for next-generation wireless system development that incorporates various technologies.

05/12/2017 10:00 AM
Comsol Software Offers Templates for Radio Frequency Parts
“The benefit of using the parts library is that you don’t have to create the work from scratch, which saves you a lot of time and subsequent resources,” said Jiyoun Munn, RF technical product manager at Comsol.

05/12/2017 07:57 AM
Five Must-Ask Questions for Successful 5G Design
Design teams involved with 5G technology must bear much in mind in order to obtain a winning formula.

05/12/2017 06:04 AM
Design High-Frequency Filters with Cross DGS Circuit Elements
Logarithmic series and coupling-matrix methods aid in the design and optimization of cross-DGS lowpass and bandpass filters.

05/11/2017 12:14 PM
Dual-Band Bandpass Filter Has Tunable Passband Frequencies
This compact bandpass filter employs an embedded structure to achieve features independently controllable passband frequencies.

05/11/2017 10:08 AM
Learning Lessons in Power and Portability
Power and portability for important concerns for electronic devices on the battlefield, just as they are in the consumer space.

05/11/2017 10:08 AM
Learning Lessons in Power and Portability
Power and portability for important concerns for electronic devices on the battlefield, just as they are in the consumer space.

05/11/2017 07:59 AM
Managing the Coexistence of Multiple Wireless Systems
Many different wireless communications standards must often operate within the same frequency spectrum, requiring guidelines to allow them to work effectively with each other.

05/10/2017 06:41 PM
Tests Approved for Morphing Airplanes Into Satellites
Airborne Wireless Networks is trying to breathe life into a clever concept, but might have missed its window to compete with inexpensive satellites from SpaceX and OneWeb.

05/10/2017 12:33 PM
Handle GaAs and GaN MMICs with Care
This white paper explains the various factors associated with successfully building microwave assemblies that contain gallium-arsenide (GaAs) or gallium-nitride (GaN) devices.

05/10/2017 07:02 AM
Wearable Batteries Take to the Field
These two flavors of chargeable and non-rechargeable battery packs are light in weight and conform to a soldier’s body for ease of transport with plenty of power to spare.

05/10/2017 05:59 AM
Cognitive EW Provides Computer-Powered Protection
Combining signal detection with sophisticated signal-analysis algorithms provides the means to quickly determine whether an unknown signal is friend or foe—and how to react to it.

05/09/2017 12:54 PM
Q&A: Wayne Shiroma, IMS 2017 General Chair
The 2017 installment of the International Microwave Symposium (IMS) is coming to Honolulu June 4-9. General Chair Wayne Shiroma tells us what's in store.

05/09/2017 10:24 AM
Manpack HF Radios Receive NSA Certification
A portable HF radio has been certified by the NSA as totally secure for communications of voice, video, and data.

05/09/2017 10:05 AM
Overcoming Vibration-Induced Noise in Radar Systems
Vibration is part of most operating environments and can increase the phase noise and instability of a reference oscillator.

05/09/2017 07:04 AM
Coaxial Attenuators Control Levels to 50 GHz
These coaxial attenuators cover a broad frequency range of dc to 50 GHz and provide tightly controlled, fixed attenuation values of 3, 6, 10, or 20 dB with low VSWR.

05/08/2017 11:08 AM
Sensofusion Recruited to Fence in Drones
A system based on detecting and reacting to UAS control signals provides the means for a weaponized drone ECM solution.

05/08/2017 08:36 AM
Design of a Dual-Band PA for Millimeter-Wave 5G Applications
With several millimeter-wave frequency bands currently under investigation for 5G, an innovative dual-band power amplifier has been designed that addresses two of the proposed bands using a single component.

05/08/2017 07:56 AM
GaN Technology Stretches Mixer Performance
This tech brief explains why GaN technology offers the potential to create a new class of mixers with improved performance.

05/08/2017 07:07 AM
DRFMs Serve as Waveform Recorders
These highly integrated subsystems combine the best of analog and digital signal processing to accurately record signal waveforms in the field, such as from radars.

05/08/2017 07:04 AM
VNAs Deliver S-Parameters Without Breaking the Bank
By leveraging the computing power of a PC, these easy-to-use VNAs make it possible to bring S-parameter measurement capability to every engineering workstation—to 3 or 6 GHz.

05/05/2017 07:27 AM
Partnership Propels 5G Development
NYU WIRELESS and National Instruments (NI) are teaming up to develop the advanced solutions needed to bring 5G to fruition.

05/03/2017 03:21 PM
Infinite Pays $110 MIllion For Microwave Suppliers Left at Smiths Interconnect
The brands that Infinite is buying include Kaelus, Polyphaser, Transtector Systems, and RadioWaves. The company is paying a little more than their total revenue last year.

05/02/2017 11:30 AM
Growth Projected for Military Leasing Markets
A market research report projects strong growth for 10 years in military leasing markets.

05/02/2017 07:38 AM
Surveying SDLVAs for ELINT and EW
SDLVAs provide the means to amplify and analyze short pulses over wide bandwidths at the front ends of RWRs, as well as ELINT and ECM receivers.

05/02/2017 06:02 AM
Facility Takes on the Most Challenging Circuits
Drawing on the expertise and experience of its operators, this company provides printed-circuit-board fabrication and assembly services for single-layer and multilayer PCBs.

05/01/2017 10:12 AM
Photodetectors Shed Light on Optical Sensing
These high-responsivity photodetectors cover wide wavelength ranges for a variety of commercial, industrial, and military applications, including for munitions guidance.

05/01/2017 08:09 AM
Efficient GaN Doherty Amplifier Peaks at 1 kW from 2.11 to 2.17 GHz
This novel asymmetric Doherty amplifier design uses multiple GaN HEMT devices to achieve 1 kW output power with 65% average efficiency for cellular transmitters from 2.11 to 2.17 GHz.

04/26/2017 10:54 AM
Software Tools Target First Draft of New Wi-Fi Stardard
“As the standardization and evolution of 802.11ax continues, engineers require a software-centric test approach that can keep pace with the latest standard features and challenging new test cases,” said Charles Schroeder, National Instruments’ vice president of RF marketing, in a press statement.

04/25/2017 01:25 PM
AFRL and Australia Share Material Development
The Air Force Research Laboratory is working with Australian researchers on the development of graphene semiconductor materials.

04/25/2017 12:23 PM
Growth Seen for Air and Missile Defense Markets
A market study projects strong growth through 2027 in air and missile defense systems.

04/25/2017 12:16 PM
Maintaining Tactical Voice Communications
Issues with confused voice communications have been traced to listening headsets and clutter caused by excess information to be processed in a short time.

04/25/2017 06:32 AM
An Arbitrary Waveform Generator for Radar and Electronic Warfare
"Signal generation has been a major problem for RF designers and researchers for some time now, and it is only getting worse as their needs have grown more complex,” said Jim McGillivary, general manager of RF and component solutions at Tektronix.

04/25/2017 06:10 AM
Readying Wearable Devices for 5G
Wearable antennas will play a large part in achieving improved wireless connectivity on 5G communications networks.

04/24/2017 01:22 PM
Free Electron Laser Generates 200 GHz
Vacuum-tube electronic devices provide the highest energy of available signal sources at terahertz frequencies.

04/24/2017 12:56 PM
Making Invisible Antennas for Satellite Solar Panels
Researchers from various locations in Texas and Illinois developed several antennas for use above and below the solar panels on CubeSat satellites.

04/24/2017 08:00 AM
Carry Spectrum Analysis with You
Claims are that spectrum analyzers in portable form still sustain the high performance of their benchtop brethren. I got the chance to test-drive one to see if that’s really the case.

04/24/2017 06:31 AM
Q&A: Charles Trantanella, Chief Scientist at Custom MMIC
In this interview, Custom MMIC’s Charles Trantanella discusses the prospect of a new generation of mixers based on gallium-nitride (GaN) technology.

04/20/2017 06:25 AM
ARL Shares Software Via Open-Source Policy
The open-source policy introduced by ARL allows government and non-government researchers outside of ARL to analyze and verify new software code developed by ARL.

04/19/2017 08:20 AM
Federal Spectrum Auction Opens 70 Megahertz for Mobile Broadband
Federal officials announced last week that a recent auction of television spectrum had repurposed 70 megahertz for mobile and broadband applications. Wireless carriers spent $19.8 billion to license the 600 MHz spectrum, which has better range and pe

04/18/2017 12:24 AM
Indonesian AF Selects Maverick Missile Tester
Versatile test sets allow measurements on the performance of the many different versions of the Maverick missile and missile launcher system.

04/18/2017 12:04 AM
Test Ranges To Support Multiple Fighter Aircraft
The CRIIS is part of the modernization of U.S. Air Force, Navy, and Army test ranges to speed and standardize testing of the various electronic systems aboard fighter aircraft.

04/17/2017 03:58 AM
Compact Transmitter Module Targets 60-GHz Applications
With the spotlight now shining squarely on the 60-GHz frequency range, circuit designers attempt to provide cost-effective transmitters and receivers for high-data-rate, short-range links.

04/13/2017 11:54 AM
Miniature Filter Takes Aim at EMI
A new compact lowpass filter has been introduced to overcome interference.

04/13/2017 04:50 AM
How AT&T Takes Millimeter Wave Channel Measurements
Last January, National Instruments released a transceiver system for modeling the behavior of millimeter waves, a far-out class of high frequency bands that wireless companies have pegged for 5G communications. It came with channel coding software an

04/12/2017 04:32 AM
Master the trade-offs in signal analysis
Sponsored by Keysight Technologies

04/11/2017 09:30 PM
5G Makes Major Strides in First Half of 2017
At Mobile World Congress 2017, 5G held court in many circles. Here is one company’s perspective on the technology’s fast track.

04/11/2017 04:37 AM
Building One 5G Wireless Standard to Rule Them All
Tirelessly working through reams of documentation, the 3GPP marches onward to create a solitary standard for 5G communications.

04/11/2017 01:32 AM
Solution Provides Security for Avionics IoT Devices
A combination of two software products adds to secure IoT communications for commercial and military avionics applications.

04/11/2017 12:32 AM
Canadian Navy Upgrades Radars on Two Submarines
A solid-state radar system is replacing the magnetron-based navigation radar systems in two Victoria-class long-range patrol submarines in the Royal Canadian navy.

04/10/2017 11:58 PM
AMD Strikes Deal for Nitero, Aiming for Wireless Virtual Reality
Lots of things are holding back the widespread usage of virtual reality, including side effects like motion sickness and high prices for equipment. But one prickly challenge is getting rid of the wires that connect high-end headsets to video game con

04/10/2017 09:12 PM
Underlining the Meaning of Linearity
While easy to conceptualize, it can be difficult to achieve the linearity of an RF/microwave component, which is essential for communications systems relying on advanced modulation schemes.

04/10/2017 12:17 PM
Test Equipment Gets Small
Download the PDF of this article. Today, we are clearly seeing a push toward better-performing products in smaller sizes. To prove this, one need only look at how far cellular phones have advanced over the years. Now, smartphones can do almost whatev

04/10/2017 05:30 AM
5G Goes Over the Air
For next-generation 5G networks to finally become reality, over-the-air testing must be available—and many companies are working to make that happen.

04/09/2017 10:31 PM
Microwave Energy Powers Many Industrial Applications
High-power microwave energy may be best known for a fast, hot meal, but it is also the basis for a wide range of industrial heating, drying, and processing applications.

04/09/2017 09:58 PM
Digital Approach Generates AM-VSB and 8VSB Signals
Through the use of DSP techniques, a single modulation platform can generate both analog AM-VSB and digital 8VSB broadcast television signals.

04/07/2017 03:39 AM
Compare Phase-Locking Methods of RF Sources
Several different design approaches, such as leveraging a programmable PLL or even an integrated PLL/VCO, can be taken to meet performance requirements for RF/microwave sources.

04/07/2017 12:40 AM
CVD Diamond Manages Device Heat Effectively
Synthetic diamond materials provide the mechanical stability and outstanding thermal conductivity needed to dissipate heat from GaN and other high-power semiconductor devices.

04/06/2017 11:38 PM
Study the Loss of Microstrip on Silicon
By understanding their loss mechanisms, microstrip transmission lines on silicon substrates offer potential for low-cost passive microwave components.

04/06/2017 11:10 AM
Satellite Start-Up Thinks Power Amplifiers Are Better With Diamond
Akash Systems opened for business late last year, selling unusual semiconductors layered onto slabs of synthetic diamond. But the story behind the technology goes back fourteen years, when Felix Ejeckam, Akash’s co-founder and chief executive, starte

04/06/2017 02:00 AM
Test Equipment Makes Wi-Fi Measurements Over the Air
New test equipment lets engineers measure Wi-Fi performance without having to plug wires into the device under test. Using a special network mode, a new Anritsu instrument can make measurements that better reflect how the device will act in the real

04/05/2017 07:20 AM
Mercury Systems Buys Delta Microwave for $40.5 Million
Mercury Systems is buying a supplier of microwave components with applications in everything from satellite communications to missile guidance systems. Its $40.5 million deal for Delta Microwave comes after President Trump's budget blueprint for next

04/05/2017 04:11 AM
Finding Ways to Test Massive MIMO 5G
Measuring the massive MIMO antenna arrays to be used with 5G cellular base stations poses many challenges for test facilities.

04/05/2017 04:07 AM
Miniature Antenna Nourishes Body Area Networks
A student design competition resulted in an award-winning health-monitoring BAN using Bluetooth low-energy (BLE) communications.

04/03/2017 04:42 AM
Observing Climate Changes from Space
A long-running NASA satellite mission continues to gather atmospheric data as part of a study of Earth’s climate changes related to water.

04/03/2017 04:37 AM
Avionics Display Visualizes Sonic Booms
By visualizing sonic booms, the flight plans of supersonic aircraft can be modified to minimize the noise levels on the ground below.

04/01/2017 07:30 AM
Who Will Advance to the Championship?
Head on over to the bracket and help push your favorite 2 universities into the championship round.  Vote Now and determine which will make the championship round

03/30/2017 09:56 PM
Forming Low-Impedance MEMS Bandpass Filters
Several resonator design architectures were developed to achieve the lower input and output port impedances needed for modern wireless communications applications.

03/30/2017 01:08 PM
One-on-One with Greg Henderson, Analog Devices
Technology Editor Chris De Martino talks with Analog Devices' Greg Henderson about the company's role in advancing semiconductor, sensor, and wireless technology, as well as packaging.

03/30/2017 10:54 AM
The Differences Between Transmitter Types, Part 2
Though older transmitters were based solely on analog technology, digital technology now plays a major role in today’s most commonly used transmitters.